int mpeg3video_get_cbp(mpeg3_slice_t *slice)
{
int code;
mpeg3_slice_buffer_t *slice_buffer = slice->slice_buffer;
if((code = mpeg3slice_showbits9(slice_buffer)) >= 128)
{
code >>= 4;
mpeg3slice_flushbits(slice_buffer, mpeg3_CBPtab0[code].len);
return mpeg3_CBPtab0[code].val;
}
int mpeg3video_get_macroblock_address(mpeg3_slice_t *slice)
{
int code, val = 0;
mpeg3_slice_buffer_t *slice_buffer = slice->slice_buffer;
while((code = mpeg3slice_showbits(slice_buffer, 11)) < 24)
{
/* Is not macroblock_stuffing */
if(code != 15)
{
/* Is macroblock_escape */
if(code == 8)
{
val += 33;
}
else
{
/* fprintf(stderr, "mpeg3video_get_macroblock_address: invalid macroblock_address_increment code\n"); */
slice->fault = 1;
return 1;
}
}
mpeg3slice_flushbits(slice_buffer, 11);
}
if(code >= 1024)
{
mpeg3slice_flushbit(slice_buffer);
return val + 1;
}
if(code >= 128)
{
code >>= 6;
mpeg3slice_flushbits(slice_buffer, mpeg3_MBAtab1[code].len);
return val + mpeg3_MBAtab1[code].val;
}
